Angular displacement and torque are two different concepts in physics that are related to the rotational motion of an object. The correct relationship between these two quantities is described by the option "D", which states that they are directly proportional to each other.

**Angular Displacement:**
- Angular displacement is a measure of the change in the orientation or position of an object undergoing rotational motion.
- It is defined as the angle through which an object rotates in a given time interval.
- Angular displacement is usually measured in radians (rad) or degrees (°).

**Torque:**
- Torque, also known as the moment of force, is a measure of the tendency of a force to cause rotational motion.
- It is defined as the product of the force applied to an object and the distance from the point of rotation to the line of action of the force.
- Torque is usually measured in newton-meters (Nm) or foot-pounds (ft-lb).

**The Relationship:**
The relationship between angular displacement and torque can be understood by considering the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's second law, known as the rotational analog of Newton's